Shotgun Forum banner

870 police marine magnum vs marine magnum

8.2K views 24 replies 6 participants last post by  Walls7  
Nothing to worry about. Appears to be some minor lead deposits...small streaks of lead inside the muzzle & likely some on the muzzle face as well. Rifled slugs usually make a mess of my shotgun's bore. Nothing a bristle/tornado brush won't remove.